Shrinkproof stud support



April 7, i925.

G. E. CARLSQN SHRINKPRQOF STUD SUPPORT Filed oct, 16. 1923 2 sh-m-shea 1. Y u

April 7, 1925.

G. E. CARLSON SHRINKPROOF STUD SUPPORT Filed OGt. 16. 192.3r 2 Sheets-Sheet 2 Parenteel pr, 7, 1925D GUSTAF E. CARLSON, F OAKLAND, CALIFDENIA.v

SHRINiIl-RQQF STUD SUEPORT.

Application filed Qctober Y16, 1923, .Serial No. 658,926.

T 0 all wko-m it may concern Be it known that l, GUsTAF E. CARLSON,

a Citizen of the United States, and a resident of Oakland, county of Alameda, State ofr California, have invented a new and useful Shrinkproof Stud Support, of which the following is a specification.

rlhe present invention relates to improvements in shrink .proof stud supports and and has particular reference to frame structures of several stories in which a series of parallel studs support a plate and the latter supports a second series of studs. The studs as well as the plate are usually made of wood in structures of this character and it is found that the horizontal plate, ordinarily consisting of two by fours or two by siXes or two by eights, is subject to shrinkage, while the upright members or studs are not. lt will be readily realized that the shrinking of the plate causes the series of studs resting thereon to be lowered, which causes the upper stories of the structure to settle which again causes the plaster in the building to crack on the walls and the ceiling, and causes the doors to bind and plumbing liXtures to come Vloose besides leaving the building in a very unpresentable condition.

lt is proposed in the present invention to introduce a means for allowing` the upper series of studdings to remain unal'l'ected by the shrinking of the plates,

whereby the building is prevented from settling and whereby the undesirable consequences of the settling of the building are avoided.

The preferred from of my invention is illustrated in the accompanying drawing, in which Figure l shows in perspective view the general arrangement of vertical studdingsV with plates interposed and with my means for rendering the studdings independent of the shrinkage of the plates embodiedtherein; Figure 2 a side view of a shoe employed in carrying` out my idea; Figure 8 a section taken along line III- III of Figure 2,7Figure 4l a top plan view of the shoe; Figure 5 a lengthwise central sect-ion through my arrangement; Figure 6 an elevation of the arrangement, showing the position of the various elements in a new building; and Figure 7 a similar view showing the arrangement after the plates have shrunk. While l have shown only the preferred form of my invention, I wish to have it understood that various changes or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention.

For the purpose of illustrating my invention, a part of a frame work has been chosen in which a plate (l) comprisingr two horizontal members (2) and (3) made preferably of wood, rests on the vertical studdings (4), while the floor joists (6) are supported on the plate, and a second plate (7) rests on short studdings commonly known as cripples with a second set of studdings (8) disposed on the upper plate (7 corresponding studs being alined with one another. It is a fact that 'the studdings do not shrink, while the plates and the floor joists in which the pressure 1s applied transversely to the grain of the wood are subject to shrinkage. It will be .readily seen that the shrinking of the plates causes the upper studdings to settle in the manner previously described.

To prevent this settling due to the shrinkage of the plate I introduce a shoe (9) preferably made of malleable cast iron or any other suitable non-shrinking material. The shoe comprises a.' channel (11) adapted to be forced on the end of the studding and to be held in place. by means of nails driven through perforations (l2) in the sides of the channel intopthe studding, and two pins (13) extending from the bottom of the channel in the manner illustrated in Figure 2. The pins correspond in length to one-half of the lthickness of the plate, so that when theA shoe is applied to the bottom end of the upper studding and to the top end of the lower .studding the pins emanating from each shoe extend into the plate and meet at the center thereof; so that actually the upper studding is supported on the lower studdng through the medium of the pins, without relying on the plate for its suppo-rt.

The manner in which my improvement operates is graphically illustrated in Figures 6 and 7. Figure 6 shows the situation as it appears immediately after the structure is erected.V The plates (l) and have not'shrunk, and all the shoes (9) are incontact with 'the plates. Figure 7 shows the same situation at a later time. The plates (l) and (7) have shrunk, but it Will be seen that the position of the studdings has not been affected by the shrinkage, due to the provision of the shoes and the pins extending therefrom and meeting in the Wood.

The fact that the studdings do not tolloW the shrinkage of the plates causes the Whole structure to remain in its original condition, and prevents the undesirable el'- eots of a settling of the structure.

I claim:

In a structure having horizontal members of shrinking material interposed between alined lengths of upright members, shoes receiving adjacent ends of the said lengths having pins of non-shrinking material extending into the horizontal members and meeting therein so that one rests on the other for allowing the upper upright member to remain unali'eeted by the shrinking of the horizontal member.

GUSTAF E. CARLSON. 

